Improved machine for scouring marble and freestone



UNITED STATES ROBERT P. HENRY, OE AKRON, oigno.A

IMPROVED MACHINE FOR SCOURING MARBLE AND FREEST'ONE.Y

PATENT GEEICE.

Specification forinlng part of Letters Patent No, 36,650. dated October14, 1862.

To all whom it may concern:

Be it known that I, ROBERT P. HENRY, of Akron, in the county of Summitand Slate of Ohio, have'invented certain new and useful Improvements inMachines for Scouring Marble or Freestone; and I do hereby declare thatthe following is a full, ele-a1', and exact description of the same,reference being had to the accompanying drawings, which form a part ofthis specification, and in which Figure l represents a plan or top viewof my improved machine. Fig. 2 represents a bottom view; and Fig. 3represents a section on ,line A B, Figs. l and 2.

In the drawings, A and B represent the bottom and sides of a vessel forholding water, and which, for convenience, may be castin one piece. Thebottom is provided with an eye, C, to which is fitted afunnel-shapedvessel, E F, which also may be cast with the bottom and sides of themain vessel, if preferred, although in practice it will probably befound more convenient to construct the part marked F separately.

The funnel-shaped vessel E F is divided or separated, as indicated inFig. 3, so that the only communication between the top and bottomof saidvessel is through the aperture a. It also has a cover, K.

XVithin the part marked E is suspended a convex distributer, G, by meansof support ff, fastened to the top or interior of the former,

The pitman I is pivoted to an ear or projectiou, H, on the top of o neside of the vessel A B, which may be made square oroblong instead ofcircular', as in this instance.

The bottom of the vessel is provided with curved grooves D, which extendfrom the eye G to near the periphery of the vessel. J is a simple fiangeon the top of the water-vessel, and which serves to prevent the Waterfrom being thrown out over the sides when the machine is in use.

The operation is as follows: The vessel A B is filled with water, -andthat part of the funnel marked F with sand, when the machine is placedupon the marble or stone to be operated upon. The operator now takeshold of the pitman I and moves it longitudinally back and forth, therebygiving to the machine a reciprocating` and semi-rotary motion over thestone or marble, while during such operation the sand is gradually andsteadily falling down the inclined sides of F, through the ap erture a,upon the distributor G, by which it is thrown or directed to thecircumference of the eye C, where it mingles with the water which isallowed to flow into the eye C, through an aperture or hole in the partmarked E, when both water and sand falling upon the stone or marble areworked off n nder the bottom of the machine by means of the grooves D,thus keeping` the entire rubbing or scouring part ofthe machine in goodcondition for action upon the material being polished.

Having described my improvements, what I claim as my invention,a1iddesire to secure by Letters Patent, is

l. Constructingamachine forscouring marble and freestone with a vesselfor holding water, in combination with a central vessel for holding`sand, substantially as and for the purposes described.

2. The use and employment of a funnelshaped vessel fitted to the eye ofthe machine, and opening into it, for holding dry sand and delivering itupon the stone, substantially as set forth.

8. The combination, with the central sandreceptacle, of the convexdistributor C.

4. The combination ot' the curved grooves D with the central eye, G,substantially as set forth.

ROBT. P. HENRY.

Vitnesses:

HENRY IV. HOWE, JOHN W. BAKER.

